<!DOCTYPE html>
<html lang="zh">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="style.css">
</head>
<body>
  <h2>这是首页</h2>
  <form action="/form" method="post" autocomplete="off">
    <label>用户名<input type="text" name="username"></label>
    <button type="submit">提交</button>
  </form>
  <script src="main.js"></script>
</body>
</html>